Effect of the 2" core is a smaller amount of pull on the yarn for more control on cotton and fine slippery fibers. Works on all wheels except S90, S87, Victoria or Julia. Ratios: 6.5, 9.5 and 15:1.

This 3 speed fat core bobbin is clear lacquered and can be used on the S10, S10DT, S15, S51, S51DT and S75 wheels. The bobbin has a sheave with three settings on one end to obtain three different spinning speeds but also has a core of 50mm (2"). The fat core affects less pull on the yarn for more control on cotton and fine slippery fibers. The ratios are: 6.5:1, 9.5:1 and 15:1.

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